External battery

High Quality Rechargeable 18650 Type Battery
An 18650 battery with rechargeable battery 3.7V 5200mAh for GPS tracker. Power on the GPS tracker as the power supply.

Specifications

HOW An 18650 battery is a type of lithium-ion rechargeable battery, classified by 18*65mm size. It is commonly used in electronic device. 18650 battery is known for the high energy density, long lifespan, relatively low self-discharge rate. GPS tracker can be powered on by 18650 battery. It helps the tracker keep working without the 12V car batter
USE Lithium-ion rechargeable battery. Applied to GPS tracker as the power supply.
Size 18650 battery: 18mm in diameter, 65mm in length.
Device TK419-3,TK419,TK418
Gpio PIN7 PIN8